Answer:
This question is incomplete, here is the complete question:
For a certain insecticide, the LD-50 dosage level for rats is determined to be 250 milligrams per kilogram of body mass. On the basis of this information, which of the following is the best prediction regarding the consequences of receiving this dosage of the insecticide?
a) Fifty percent of any rat population would be sickened
b) Fifty percent of the population of any warm-blooded animal would die
c) Fifty percent of any population of mosquitoes would die
d) Five hundred out of every one thousand people would experience acute effects
e) Five hundred out of every one thousand rats would die
Explanation:
The LD-50 dosage is normally used in toxicology assays and is known as the median lethal dose of a compound (toxins or pollutants for example). This value represents the quantity of a substance that is required to kill fifty percent of a given population that is under a test for a fixed period of time.
The units in which the LD50 is usually expressed are mass of toxic compound administered per unit body mass of the organisms that is tested (milligrams of substance per kilogram of body weight)
Based on the concepts explained before and on the information provided by the question, the best prediction is e. Five hundred out of every one thousand rats would die
. This is true because the statement refers to the correct specie for which the LD-50 dosage was estimated (rats), express the correct percentage of individuals (fifty percent of one thousand is five hundred) and the proper consequences (death).
<h2>Visible spectrum of photon emission</h2>
Explanation:
- An action spectrum is ordinarily plotted so that the "activity" appeared on the y-axis is estimated with an equivalent number of photons at every wavelength of the unmistakable range. In any case, our sun doesn't emanate equivalent quantities of photons at every wavelength.
- Rather, the sun transmits the most photons in the yellow piece of the range, with moderately fewer photons discharged in the red and violet-blue pieces of the range. In this manner, the red and violet-blue districts of Engelmann's action spectrum were estimated with fewer photons than in the yellow piece of the range.
- To correct for this, you need to consider how expanding the quantity of photons in the red and violet-blue pieces of the range - to coordinate the emission level in the yellow part- - would change the measure of oxygen created, and therefore the number of microscopic organisms that amassed, in the red and violet-blue spectral region. The rectified action spectrum would show higher tops in the red and violet-blue pieces of the range, yet the plot in the yellow piece of the range would be around equivalent to Engelmann's.
Mitochondrial which turns food or atp into energy for use